import { ControlValueAccessor } from "@angular/forms";
import { DecimalPipe } from "@angular/common";
import { DoCheck, ElementRef } from "@angular/core";
export declare const NUMBER_DIRECTIVE_PROVIDER: any;
export declare class NumberInputDirective implements ControlValueAccessor, DoCheck {
    private _elementRef;
    private _decimalPipe;
    private _onChange;
    private _onTouched;
    private _decimalSep;
    private _originalValue;
    format: string;
    align: string;
    allowNegative: boolean;
    negativeColor: string;
    constructor(_elementRef: ElementRef, _decimalPipe: DecimalPipe);
    ngDoCheck(): void;
    registerOnChange(fn: Function): void;
    registerOnTouched(fn: Function): void;
    setDisabledState(value: boolean): void;
    writeValue(value: number): void;
    onFocus(event: any): void;
    onBlur(event: any): void;
    onInput(event: any): void;
    onKeypress(event: any): boolean;
    applyMask(): string;
    clearMask(): string;
}